I photographed this DLR Tunnel from a moving train one night after visiting my sister (she lives on the DLR route).
Sunday 21 June 2009; 2052 Hours
[Canon EOS 5D Mark 2 | ISO 1600 | 16mm | 0.8 seconds | F/6.3]

Shot at midnight as I made my way home (I was expecting an empty platform).
[Panasonic Lumix LX3 | ISO 80 | 37mm | f/4 | 1/2 seconds]

A photograph of the St Paul’s Cathedral Dome as seen from the floor of the Millennium Bridge at twilight last night. I like the effect of the slow shutter-speed on the pedestrians.
From WikiPedia:
The London Millennium Footbridge is a pedestrian-only steel suspension bridge crossing the River Thames in London, England, linking Bankside with the City. It is located between Southwark Bridge (downstream) and Blackfriars Bridge (upstream). With construction beginning in 1998, it is owned and maintained by the Bridge House Estates a charitable trust overseen by the City of London Corporation.
Londoners nicknamed the bridge the Wobbly Bridge after crowds of pedestrians felt an unexpected swaying motion on the first two days after the bridge opened. The bridge was closed and modified, and further modifications eliminated the “wobble” entirely.
[Panasonic Lumix LX3 | ISO 80 | 37mm | 3.2 seconds]

Harrods is a department store located on Brompton Road in Knightsbridge, London, England. The Harrods brand also applies to other enterprises undertaken by the Harrods group of companies including Harrods Bank, Harrods Estates, Harrods Aviation and Air Harrods.
The store occupies a 4.5-acre site and has over one million square feet of selling space in over 330 departments. This makes Harrods one of the largest department stores in the world together with Macy’s New York (the UK’s second-biggest shop, Oxford Street’s Selfridges is a little over half the size with 540,000-square-foot of selling space).
The Harrods motto is Omnia Omnibus Ubique —- All Things for All People, Everywhere. Several of its departments, including the seasonal Christmas department and the Food Hall are world famous.
Source: http://en.wikipedia.org/wiki/Harrods

Hammersmith Bridge is a crossing of the River Thames in west London, just south of the Hammersmith town centre area of the London Borough of Hammersmith and Fulham on the north side of the river. It allows road traffic and pedestrians to cross to Barnes (in the London Borough of Richmond upon Thames) on the south side of the river. The current bridge is the second permanent bridge on the site.
From: http://en.wikipedia.org/wiki/Hammersmith_Bridge